<template>
  <div>
      <qwerty title1="首页" title2="商品管理" title3="商品列表"></qwerty>

      <el-card style="margin-top:20px">
        <el-alert show-icon title="注意：只允许为第三级分类设置相关参数！" type="warning" :closable="false"></el-alert>
        <el-row class="cat_opt">
          <el-col>
            <span>选择商品分类：</span>
            <el-cascader class="el-cascader" expand-trigger="hover" :options="catelist" :props="cateProps" v-model="selectedCateKeys" @change="handleChange">

          </el-cascader>
          </el-col>
        </el-row>
        <el-tabs v-model="activeName" @tab-click="handleTabClick">
           <el-tab-pane label="动态参数" name="many">
             <el-button type="primary" szie="mini" :disabled="isBtnDisabled" @click="addDialogVisible=true">
               添加参数
             </el-button>
             <el-table :data="manyTableData" border stripe>
               <el-table-column type="expand">
               <template slot-scope="scope">
                 <el-tag
                  :key="tag"
                  v-for="tag in scope.row.attr_vals"
                  closable
                  :disable-transitions="false"
                  @close="handleClose(tag)">
                  {{tag}}
                </el-tag>
                <el-input
                  class="input-new-tag"
                  v-if="scope.row.inputVisible"
                  v-model="scope.row.inputValue"
                  ref="saveTagInput"
                  size="small"
                  @keyup.enter.native="handleInputConfirm"
                  @blur="handleInputConfirm"
                >
                </el-input>
                <el-button v-else class="button-new-tag" size="small" @click="showInput">+ New Tag</el-button>
               </template>
               </el-table-column>
               <el-table-column type="index"></el-table-column>
               <el-table-column label="参数名称" prop="attr_name"></el-table-column>
               <el-table-column label="操作">
                 <template slot-scope="scope">
                   <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row)">修改</el-button>
                   <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeParams(scope.row.attr_id)">删除</el-button>
                 </template>
               </el-table-column>
             </el-table>
           </el-tab-pane>
           <el-tab-pane label="静态参数" name="only">
             <el-button type="primary" szie="mini" :disabled="isBtnDisabled" @click="addDialogVisible=true">
               添加参数
             </el-button>
             <el-table :data="onlyTableData" border stripe>
               <el-table-column type="index"></el-table-column>
               <el-table-column label="参数名称" prop="attr_name"></el-table-column>
               <el-table-column label="操作">
                 <template slot-scope="scope">
                   <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row)">修改</el-button>
                   <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeParams(scope.row.attr_id)">删除</el-button>
                 </template>
               </el-table-column>
             </el-table>
           </el-tab-pane>
        </el-tabs>
      </el-card>
      <el-dialog :title="'添加'+titleText" :visible.sync="addDialogVisible" width="50%" :before-close="addDialogClosed">
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px">
          <el-form-item :label="titleText" prop="attr_name">
            <el-input v-model="addForm.attr_name"></el-input>
          </el-form-item>
        </el-form>
            <span slot="footer" class="dialog-footer">
              <el-button @click="addDialogVisible=false">取 消</el-button>
              <el-button type="primary" @click="addParams">确 定</el-button>
            </span>
      </el-dialog>
      <!-- <el-dialog :title="'修改'+titleText" :visible.sync="editDialogClosed" width="50%" :before-close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editForm" label-width="100px">
          <el-form-item :label="titleText" prop="attr_name">
            <el-input v-model="editForm.attr_name"></el-input>
          </el-form-item>
        </el-form>
            <span slot="footer" class="dialog-footer">
              <el-button @click="editDialogVisible=false">取 消</el-button>
              <el-button type="primary" @click="editParams">确 定</el-button>
            </span>
      </el-dialog> -->
  </div>
</template>

<script>
export default {
  data(){
    return{
      dynamicTags: ['标签一', '标签二', '标签三'],
      inputVisible: false,
      inputValue: '',
      manyTableData:[],
      onlyTableData:[],
      activeName:'many',
      catelist:[],
      cateProps:{
        value:'cat_id',
        label:'cat_name',
        children:'children'
        },
      selectedCateKeys:[],
      // isBtnDisabled:false,
      addDialogVisible:false,
      editDialogVisible:false,
      addForm:{
        attr_name:'',
      },
      editForm:{
        attr_name:""
      },
      editFormRulles:{
        attr_name:[
          {
            required:true,
            message:'请输入参数名称',
            trigger:'blur'
          }
        ]
      },
      addFormRules:{
        attr_name:[
          {
            required:true,
            message:'请输入参数名称',
            trigger:'blur'
          }
        ],
      }
    }
  },
  computed:{
    titleText(){
      if(this.activeName === 'many'){
        return '动态参数'
      }
      return '静态参数'
    },
    isBtnDisabled(){
      if(this.selectedCateKeys.length !==3){
        return true
      }
      return false
    },
    cateId(){
      if(this.selectedCateKeys.length === 3){
        return this.selectedCateKeys[2]
      }
      return null
    }
  },
  methods:{
    handleClose(tag) {
        this.dynamicTags.splice(this.dynamicTags.indexOf(tag), 1);
      },

      showInput() {
        this.inputVisible = true;
        // this.$refs.saveTagInput.$refs.input.focus();
        this.$nextTick(_ => {
          this.$refs.saveTagInput.$refs.input.focus();
        });
      },

      handleInputConfirm() {
        let inputValue = this.inputValue;
        if (inputValue) {
          this.dynamicTags.push(inputValue);
        }
        this.inputVisible = false;
        this.inputValue = '';
      },
    async editParams(){
      this.$refs.editFormRef.validate(async valid => {
        if(!valid) return
        const {data:res} = await this.request.put(
          `categories/${this.cateId}/attributes/${row.editForm.attr_id}`,
          {
            attr_name:this.editForm.attr_name,attr_sel:this.activeName
          }
        )
        if(res.meta.status !== 200){
          return this.$message.error('修改参数失败！')
        }
        this.$message.success('修改参数成功!')
      })
    },
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    showEditDialog(row){
      this.editForm,attr_id = row.attr_id;
      this.editForm.attr_name = row.attr_name;
      this.editDialogVisible = true
      // const {data:res}=await this.request.get(
      //   `categories/${this.cateId}/attributes/${row.attr_id}`,
      //   {
      //     params:{attr_sel:this.activeName}
      //   }
      // )
    },
    addParams(){
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const {data:res}=await this.request.post(
          `categories/${this.cateId}/attributes`,
          {
            attr_name:this.addForm.attr_name,
            attr_sel:this.activeName
          }
        )
        if(res.meta.status !== 201){
          return this.$message.error('添加参数失败！')
        }
        this.$message.success('添加参数成功!')
        this.addDialogVisible = false
        this.getParamsData()
      })
    },
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    handleTabClick(){
      this.getParamsData();
    },
    handleChange(){
      this.getParamsData();
    },
    async getParamsData(){
      if(this.selectedCateKeys.length !== 3){
        this.selectedCateKeys = []
        this.manyTableData = []
        this.onlyTableData = []
      }
      const {data:res}=await this.request.get(
        `categories/${this.cateId}/attributes`,
        {
          params:{sel:this.activeName}
        }
      )
      if(res.meta.status !== 200){
        return this.$message.error("获取参数列表失败！")
      }
      res.data.forEach(item =>{
        item.attr_vals = item.attr_vals ? item.attr_vals.split(''):[]
        item.inputVisivble = false
        item.inputValue = ''
      })
      if(this.activeName === 'many'){
        this.manyTableData = res.data
      } else {
        this.onlyTableData = res.data
      }
    },
    async getCateList(){
      var {data:res}=await this.request.get('categories')
            if(res.meta.status !==200){
                return this.$message.error("获取商品分类失败！")
            }
            this.catelist = res.data
    }
  },
  created(){
    this.getCateList();
  }
}
</script>

<style lang="scss" scoped>
.cat_opt{
  margin: 15px 0;
}
.el-tag{
width: 120px;
}
.input-new-tag{
  width: 120px;
}
.el-cascader{
  width: 220px;
}
</style>